More than 100 companies are said to work with AP on MOS-related projects. Īs an open protocol, the MOS Development Group encourages the participation of broadcast equipment vendors and their customers. The fundamental concepts of MOS were released to the public domain at that conference. The first meeting of the MOS protocol development group occurred at the Associated Press ENPS developer's conference in Orlando, Florida in 1998. MOS enables journalists to see, use, and control media devices inside Associated Press's ENPS system so that individual pieces of newsroom production technology speak a common XML-based language. It also limits the need to have operators in multiple locations throughout the studio as, for example, multiple character generators (CG) can be fired from a single control workstation, without needing an operator at each CG console. This approach affords broadcasters flexibility to purchase equipment from multiple vendors. It was left to the manufacturers to interface newsroom computer systems. By allowing developers to embed functionality and handle events, vendors were relieved of the burden of developing device drivers. MOS was developed to reduce the need for the development of device specific drivers. The NCS can notify the MOS of the status of specific playlist items or running orders. The MOS can inform the NCS of the status of specific clips or the MOS system in general. This allows the NCS to control the sequence that media objects are played or presented by the MOS. The NCS can build and transfer playlist information to the MOS. This allows the NCS to be "aware" of the contents of the MOS and enables the NCS to perform searches on and manipulate the data the MOS has sent. The MOS "pushes" descriptive information and pointers to the NCS as objects are created, modified, or deleted in the MOS. It enables the exchange of the following types of messages: Descriptive Data for Media Objects. The Media Object Server ( MOS) protocol allows newsroom computer systems (NCS) to communicate using a standard protocol with video servers, audio servers, still stores, and character generators for broadcast production.
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